LCD-14048 Datasheet, PDF (30/33 Pages) SparkFun Electronics – TeensyView Hookup Guide

};
void clearFlash( void )
{
Serial.print("Erasing flash");
SerialFlash.eraseAll();
while (SerialFlash.ready() == false)
{
// wait, 30 seconds to 2 minutes for most chips
Serial.print(".");
delay(100);
}
Serial.println("Done!");
Serial.println("Program held. Now comment out clearFlash
(); and recompile");
while (1);
}
void prepareTestFile( void )
{
//Check if file exists, if not, create it.
if (SerialFlash.exists("testfile.dat") == 0)
{
//File doesn't exist
if (SerialFlash.create("testfile.dat", 128 * 3) == true)
{
Serial.println("Created testfile.dat");
}
else
{
Serial.println("File creation failed!!!");
}
}
if (SerialFlash.exists("testfile.dat"))
{
Serial.println("File Exists, trying to open...");
file = SerialFlash.open("testfile.dat");
if (file)
{ // true if the file exists
Serial.println("testfile.dat opened");
uint8_t buffer[3];
for (int i = 0; i < (128 * 3); i = i + 3)
{
buffer[0] = colorwheel[i];
buffer[1] = colorwheel[i + 1];
buffer[2] = colorwheel[i + 2];
file.seek(i);
file.write(buffer, 3);
Serial.print(".");
}
file.close();
Serial.println("Test data generation complete");
}
else
{
Serial.println("testfile.dat not opened!!!");
}
}
}
void listTestFile( void )
{
file = SerialFlash.open("testfile.dat");
if (file)
{ // true if the file exists
Serial.println("testfile.dat opened");
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